The present invention discloses a root key type pressure bearing mechanism in an anchor hole, a root key type anchor cable and an anchor hole grouting method. The pressure bearing mechanism includes a carrier, root keys and a tapered plug, a through hole is formed in the center of the tapered plug, a taper hole is formed in the center of the carrier, key holes are formed along a radial direction of the carrier with an inner wall of the taper hole as a starting point, the number of the key holes is the same as that of the root keys, the root keys and the key holes constitute sliding pairs, an outer wall of the tapered plug is adapted to the taper hole, the sum of the length of the root key and the radius of a position corresponding to the tapered plug is larger than the radius of the anchor hole, and the length of the root key is less than the radius of the anchor hole; and when the tapered plug is plugged into the taper hole, the head of the root key stretches into a rock mass of the anchor hole. The pressure bearing mechanism assembled by the assembly method is applied to the anchor cable, and when the anchor cable is used for grouting, the anchoring effect of the anchor cable can be effectively improved.

The present invention discloses a root key type pressure bearing mechanism in an anchor hole, a root key type anchor cable and an anchor hole grouting method. The pressure bearing mechanism includes a carrier, root keys and a tapered plug, a through hole is formed in the center of the tapered plug, a taper hole is formed in the center of the carrier, key holes are formed along a radial direction of the carrier with an inner wall of the taper hole as a starting point, the number of the key holes is the same as that of the root keys, the root keys and the key holes constitute sliding pairs, an outer wall of the tapered plug is adapted to the taper hole, the sum of the length of the root key and the radius of a position corresponding to the tapered plug is larger than the radius of the anchor hole, and the length of the root key is less than the radius of the anchor hole; and when the tapered plug is plugged into the taper hole, the head of the root key stretches into a rock mass of the anchor hole. The pressure bearing mechanism assembled by the assembly method is applied to the anchor cable, and when the anchor cable is used for grouting, the anchoring effect of the anchor cable can be effectively improved.

The present invention discloses a root key type pressure bearing mechanism in an anchor hole, a root key type anchor cable and an anchor hole grouting method. The pressure bearing mechanism includes a carrier, root keys and a tapered plug, a through hole is formed in the center of the tapered plug, a taper hole is formed in the center of the carrier, key holes are formed along a radial direction of the carrier with an inner wall of the taper hole as a starting point, the number of the key holes is the same as that of the root keys, the root keys and the key holes constitute sliding pairs, an outer wall of the tapered plug is adapted to the taper hole, the sum of the length of the root key and the radius of a position corresponding to the tapered plug is larger than the radius of the anchor hole, and the length of the root key is less than the radius of the anchor hole; and when the tapered plug is plugged into the taper hole, the head of the root key stretches into a rock mass of the anchor hole. The pressure bearing mechanism assembled by the assembly method is applied to the anchor cable, and when the anchor cable is used for grouting, the anchoring effect of the anchor cable can be effectively improved.

A wind-resistant suspension bridge includes a bridge tower, a bridge body, a main rope, a suspension rope and a guardrail. The suspension bridge further includes a wind-resistant rope, one end of which is connected to the bridge tower and the other end of which is connected to the main rope. The wind-resistant rope, the main rope and the bridge tower form a substantially triangle. The contact point between the bridge tower and the main rope, the connection point between the wind-resistant rope and the main rope, and the connection point between the wind-resistant rope and the bridge tower form the three vertices of the substantially triangle.

A wind-resistant suspension bridge includes a bridge tower, a bridge body, a main rope, a suspension rope and a guardrail. The suspension bridge further includes a wind-resistant rope, one end of which is connected to the bridge tower and the other end of which is connected to the main rope. The wind-resistant rope, the main rope and the bridge tower form a substantially triangle. The contact point between the bridge tower and the main rope, the connection point between the wind-resistant rope and the main rope, and the connection point between the wind-resistant rope and the bridge tower form the three vertices of the substantially triangle.

Disclosed are a multi-directional broadband tuned mass damper and a design method thereof, since a first damping structure and a second damping structure are set on a rigid vibration damping frame, and the first damping structure is provided with a control main frequency, the second damping structure is provided with two control main frequencies, the control main frequency of the second damping structure is greater than that of the first damping structure; under the synergistic effect, the second damping structure mainly effectively broadens the control range for high frequencies, and a plurality of first damping structures control the control main frequency of a low frequency one-to-one, thereby controlling the full frequency, and the extension direction of the first damping structure is the same as that of the second damping structure on the rigid vibration damping frame, ensuring isotropic mass and stiffness distribution characteristics thereof; and furthermore, when using different control frequency ranges, the number and distribution of the first damping structure and the second damping structure, as well as the corresponding mass ratio and damping ratio can be pre-designed, so as to adapt to different control requirements.

Disclosed are a multi-directional broadband tuned mass damper and a design method thereof, since a first damping structure and a second damping structure are set on a rigid vibration damping frame, and the first damping structure is provided with a control main frequency, the second damping structure is provided with two control main frequencies, the control main frequency of the second damping structure is greater than that of the first damping structure; under the synergistic effect, the second damping structure mainly effectively broadens the control range for high frequencies, and a plurality of first damping structures control the control main frequency of a low frequency one-to-one, thereby controlling the full frequency, and the extension direction of the first damping structure is the same as that of the second damping structure on the rigid vibration damping frame, ensuring isotropic mass and stiffness distribution characteristics thereof; and furthermore, when using different control frequency ranges, the number and distribution of the first damping structure and the second damping structure, as well as the corresponding mass ratio and damping ratio can be pre-designed, so as to adapt to different control requirements.